2018 BMW 3 Series Sedan Diesel vs. 2018 Mazda 6

Two Sedans with more similarities, such as the body structure, market segment, height, and maximum occupancy, than differences, like the powertrain, starting price, horsepower, fuel economy, and ground shadow size. First of all, the 2018 Mazda 6 has a more powerful engine than the 2018 BMW 3 Series Sedan Diesel, and it gets 7.5 fewer miles on a gallon of fuel. Also, the 2018 6 is priced $19,800 lower compared to the base MSRP of the 2018 3 Series Sedan Diesel. In addition, the 3 Series Sedan Diesel is slightly smaller than the 6. Among similarities are the body structure, market segment, height, and maximum occupancy.